/*
 * Copyright 2017 Huawei Technologies Co., Ltd
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package io.servicecomb.swagger.invocation.context;

/**
 * 传递调用过程的上下文数据
 */
public final class ContextUtils {
    private ContextUtils() {
    }

    private static ThreadLocal<InvocationContext> contextMgr = new ThreadLocal<>();

    public static InvocationContext getInvocationContext() {
        return contextMgr.get();
    }

    public static InvocationContext getAndRemoveInvocationContext() {
        InvocationContext context = contextMgr.get();
        if (context != null) {
            contextMgr.remove();
        }
        return context;
    }

    public static void setInvocationContext(InvocationContext invocationContext) {
        contextMgr.set(invocationContext);
    }

    public static void removeInvocationContext() {
        contextMgr.remove();
    }
}
